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Tue, 16 Mar 2021 15:16:23 +0000 Subject: Re: [PATCH v5 33/36] KVM: arm64: Wrap the host with a stage 2 To: Quentin Perret Cc: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, android-kvm@google.com, seanjc@google.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, tabba@google.com, ardb@kernel.org, mark.rutland@arm.com, dbrazdil@google.com References: <20210315143536.214621-1-qperret@google.com> <20210315143536.214621-34-qperret@google.com> From: Mate Toth-Pal Message-ID: Date: Tue, 16 Mar 2021 16:16:18 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [188.142.195.117] X-ClientProxiedBy: LNXP123CA0004.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:d2::16) To VI1PR08MB3568.eurprd08.prod.outlook.com (2603:10a6:803:7f::19) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.0.45] (188.142.195.117) by LNXP123CA0004.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:d2::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3933.31 via Frontend Transport; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Mar 2021 15:16:42.3066 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 479d1c95-06ae-4e2b-407e-08d8e88e8147 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: VE1EUR03FT038.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR08MB3883 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2021-03-16 15:29, Quentin Perret wrote: > On Tuesday 16 Mar 2021 at 12:53:53 (+0000), Quentin Perret wrote: >> On Tuesday 16 Mar 2021 at 13:28:42 (+0100), Mate Toth-Pal wrote: >>> Changing the value of MT_S2_FWB_NORMAL to 7 would change this behavior, and >>> the resulting memory type would be device. >> >> Sounds like the correct fix here -- see below. > > Just to clarify this, I meant this should be the configuration for the > host stage-2. We'll want to keep the existing behaviour for guests I > believe. I Agree. Thanks, Mate